Apparatus for treating cloth with liquid

ABSTRACT

A liquid flow type treating apparatus for treating cloth with liquid in which a greater part of a vessel is alloted to a liquid tank, said liquid tank is provided for stay and transfer of a cloth, an overflow transfer mechanism, auxiliary liquid stream producing mechanism and a driving reel are disposed in an end portion of the vessel, a guide tube connecting said overflow transfer mechanism with said liquid tank, so that the transfer of the cloth is carried out by the overflow liquid stream or by the liquid stream which is in total of said overflow liquid stream and auxiliary liquid stream.

United States Patent 11 1 [111 3,924,424

Watanabe et a1. Dec. 9, 1975 APPARATUS FOR TREATING CLOTH 1,513,008 2/1968 France 68/177 WITH LIQUID [76] Inventors: Mikio Watanabe, 6-23-1, Muika, Primary ExaminerBi11y J. Wilhite Kanazu-cho, Saki-gun, Fukui; Keizo Assistant ExaminerPhilip R. Coe Ohtori, Dai 8-9-15, Takayanagi-cho, Attorney, Agent, or Firm-Toren, McGeady and Fukui, Fukui, both of Japan Stanger [22] Filed: Sept. 7, 1973 [21] Appl. No.: 395,133 57 S C A liquid flow type treating apparatus for treating cloth [30] Foreign Apphcatmn Pnomy Data with liquid in which a greater part of a vessel is alloted Sept. 8, 1972 Japan 47-90077 to a liquid tank, Said liquid tank i provided f stay and transfer of a cloth, an overflow transfer mecha- [52] US. Cl.2 68/177; 68/ 184 ism, auxiliary liquid Stream producing mechanism [51] hit. C1. D06B 3/28 and a driving reel are disposed in an end portion of [58] Fleld of Search 68/177, 184 the vessel, a guide tube connecting Said overflow transfer mechanism with said liquid tank, so that the [56] References and transfer of the cloth is carried out by the overflow liq- U ITED STATES P S uid stream or by the liquid stream which is in total of 3,762,189 10/1973 Marsh 68/177 said r w liq id stream and auxiliary liquid 3,782,138 1/1974 Kawasaki 68/177 stream.

FOREIGN PATENTS OR APPLICATIONS 3 Claims, 4 Drawlng Flgures 1,166,738 4/1964 Germany 68/184 atant Dec. 9 1975 Sheet 1 of 2 3,924,42

US. Patent Dec. 9 1975 Sheet 2 of2 3,924,424

APPARATUS FOR TREATING CLOTH WITH LIQUID BACKGROUND OF THE INVENTION The present invention relates to an apparatus for treating cloth with liquid, and particularly, relates to an apparatus for treating cloth wherein the liquid tank is filled with a treating liquid, and the stay and transfer of the cloth to be treated is made possible in the treating liquid filled in said liquid tank, that is, the cloth is treated perfectly in liquid in spite of low head or level difference between the liquid surface in said liquid tank and the liquid surface in the liquid reservoir.

It is demanded in this kind of apparatus that the position of the driving reel is lowered as low as possible, causing to dispose the driving reel as near as possible to the liquid surface in said liquid tank and to the liquid surface in said liquid reservoir so as to lessen the length of the portion of the cloth to be treated which is outside the liquid, and to render adjustable the sucking force against the cloth to be treated which is sucked from the dropping port formed at the opening end of the guide tube.

Considering these points, the object of the present invention is to provide a cloth treating device by liquid characterized by the fact that a vessel disposed substantially horizontal with its one end raised slightly is divided into a liquid reservoir and a liquid tank by means of a partition wall provided at one end of said vessel, an auxiliary liquid stream producing chamber is provided around an end, disposed in said liquid reservoir, of a guide tube extending in an axial direction of said vessel, a dropping port is formed by a mouth edge formed by bending and extending the upper edge of the outer wall of said auxiliary liquid stream producing chamber to the opening side of the end portion of said guidetube, an ejecting port for auxiliary liquid stream having an annular slit form and communicating with said auxiliary liquid stream producing chamber at a level lower than said dropping port, the other end of said guide tube is made to open at the other end of said vessel, a driving reel is provided above said liquid reservoir, cloth to be treated is guided and introduced into said guide tube, after passing said driving reel, by means of liquid stream dropping from said dropping port of said guide tube and ejected from said ejecting port for auxiliary liquid stream, said cloth is caused to flow in the liquid stream in said guide tube and is discharged from the other end of said guide tube into liquid in said liquid tank so that the cloth is made to stay and transfer in the liquid, and again passing around said driving reel, whereby the cloth is treated.

SUMMARY OF THE INVENTION The object of the present invention is to provide an apparatus for treating cloth with liquid, in which a greater part of the vessel is alloted to the liquid tank and accordingly the treating capacity of cloth is great.

Another object of the present invention is to provide an apparatus for treating cloth in which the liquid tank is filled with a treating liquid, and the stay and transfer of the cloth to be treated are made possible in the treating liquid filled in said liquid tank and said cloth is treated perfectly in liquid, so that there is not produced unevenness in the dyed cloth.

Still another object of the present invention is to provide an apparatus for treating cloth in which the cloth to be treated is made possible to circulate in spite of low head or level difference between the liquid surface in said liquid tank and the liquid surface in the liquid reservoir.

A further object of the present invention is to provide an apparatus for treating cloth in which the cloth is transferred by the overflow stream, or it is made possible to transfer the cloth by adding the auxiliary liquid stream to said over flow stream which is produced by the potential energy caused from the level difference between the liquid surface in said liquid tank and the liquid surface of the liquid reservoir.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal cross section showing an apparatus according to the present invention,

FIG. 2 is a cross sectional view taken along the line IIIl in FIG. 1,

FIG. 3 is an enlarged cross sectional view of a cloth transferring mechanism, and

FIG. 4 is a cross sectional view taken along the line IV-IV in FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION An embodimental example of the apparatus according to the present invention will now be described referring to the drawings. The vessel 1, which is disposed substantially horizontal, has a circular section, and is slightly inclined upwardly at its one end 2, and the vessel is defined or divided into a liquid reservoir 4 at one end 2 and a liquid tank 6 at the other end 5 by means of a partition wall 3 provided near at one end 2 of the vessel 1. Also in the present example, the liquid tank 6 is divided into right and left liquid tanks 6 and 6 by means of a partition wall 7 extending in an axial direction'of the vessel 1 over the liquid reservoir 4 and the liquid tank 6, a stream regulating plate 8 is provided along the bottom portion of the liquid tank. 6, and is sharply inclined'at the side of said liquid reservoir 4, a space portion 9 is defined by this stream regulating plate 8 together with the bottom portion of the vessel 1, the partition wall 3 and the stream regulating plate 8, said space portion 9 being communicated with the liquid tank portion 6 situated above the stream regulating plate 8 through a large number of holes 10, 10, formed in the stream regulating plate 8. Each of the liquid tanks 6 6 of the liquid tank 6 is formed to have a semi-circular section by means of the partition wall 7, and stream guide plates 11, 11, are projectingly provided, on the inner wall surfaces of the liquid tanks 6 6 extending along the axial direction of the vessel 1 and breadthwise along radial direction to the center of the vessel 1.

Next, a guide tube 12 is provided below said vessel 1 and along the axial direction thereof leaving an intermediate portion extending therebetween. Since in the present example, the liquid tank 6 is divided into two parts, the liquid tanks 6 and 6 the guide tube 12 is divided into two guide tubes 12,, 12 respectively, corresponding to the liquid tanks 6 6 The end portion 13 of the guide tube 12 is directed upwardly and is arranged in the liquid reservoir 4, and an auxiliary liquid stream producing chamber 14 is provided around said end portion 13 of the guide tube 12, so as to form a cloth transfer mechanism 16 with the opening 15 of the end portion .13 of the guide tube 12 arranged at the center.

As shown in FIGS. 3 and 4, in the cloth transfer mechanism 16, there is formed a dropping port 20 by means of an edge 19 bending and extending the upper edge 18 of the outer wall 17 of the auxiliary liquid stream producing chamber 14 towards the opening 15 of the guide tube 12. On the opening 15 of the guide tube 12 enlarged of its diameter in a form of a funnel, there is formed a rolled-up portion 21 along the inner side of the upper edge 18 of said outer wall 17 as well as along the inner side of the edge 19. An auxiliary liquid ejecting port 22 having an annular slit shape is formed by said mouth edge 19 and the rolled-up portion 21, and is communicated with the auxiliary liquid stream producing chamber 14 through a curved passage 23.

In this way, the curved passage 23 is formed, the cross-sectional gap of which is reduced suddenly at the upper portion of the auxiliary liquid stream producing chamber 14, and in this curved passage 23, the crosssectional gap is gradually reduced towards the ejecting port 22. The slit width of the ejecting port 22 having an annular slit form arranged at a level lower than the dropping port is about 5 mm.

The other end portion 24 of said guide tube 12 is curved upwardly, and is made to open at 25 into the liquid tank 6 in the other end 5 of the vessel. One end of a pipe 27 is opened at 26 at the bottom of the liquid reservoir 4, and the other end of the pipe 27 is opened at into said space portion 9 in the bottom of the vessel 1, and a heat exchanger 28 and a pump 29 are disposed therebetween.

One end of an auxiliary liquid feed pipe 32 is opened at 31 after passing through both the bottom portion of the liquid reservoir 4 and the bottom plate of the auxiliary liquid stream producing chamber 14, and the other end of the auxiliary liquid feed pipe 32 is connected to the intermediate path between the heat exchanger 28 and the opening 26 in said pipe 27. The pipe 27 and the feed pipe 32 are each provided with regulating valves 33, 34, respectively, and further, one end of a pipe 35 is connected to the intermediate passage between the pump'29 in said pipe 27 and the opening 30, and the other end of the pipe 35 is connected to a casing 36 provided at the other end 24 of said guide tube 12, and a regulating valve 37 is also provided in the pipe 35. In this case, a large number of perforations 38, 38, are formed on a wall of the guide tube 12 in the casing 36, and a gap 39 is formed between the casing 36 and the wall of the guide tube 12.

A driving reel 40 is provided slightly above the liquid reservoir 4 in the vessel 1, the rotating shaft 41 of the reel 40 is disposed perpendicular to the axis of the vessel l, the outer periphery at the right-hand side of the reel 40 is aligned with the center line of upwardly directed end portion 13 of the guide tube 12.

One end 2 of the vessel 1 is covered with an openable cover 42 which has a sufficient water-tight construction. The numeral 43 designates a manhole for inspection.

The apparatus according to the present invention being thus constituted, when a treating liquid (a) is made to flow into the vessel 1 and after the treating liquid (a) is introduced to the liquid tank 6, the regulating valves 33, 34, 37 are opened and the pump 29 and the heat exchanger 28 are operated, the treating liquid (a) in the liquid tank 6 is introduced to the liquid reservoir 4 from the opening 26 through the perforations 10, 10, in the stream regulating plate 8, and the space portion 9, opening 30 and through the pipe 27. When the liquid level in the liquid reservoir 4 becomes increased, the treating liquid (a) is caused to drop into the guide tube 12 continuously through the periphery of the dropping port 20 over the upper edge 18 of the auxiliary liquid stream producing chamber 14. A portion of the treating liquid (a) flows from the opening 31 into the auxiliary liquid flow producing chamber 14 through the feed pipe 32 branched from the pipe 27. Then the treating liquid (a) rises in the chamber 14, passes the curved passage 23 and turns downwardly at the ejecting port 22 having a form of annular slit, and ejects towards the center line of the guide tube 12. Thus, a liquid stream having a considerable energy can be produced by means both the liquid stream dropping into the guide tube 12 from the dropping port 20 and the auxiliary liquid stream flowing into the guide tube 12 from the ejecting port 22. The treating liquid introduced into the guide tube 12 fills the tube and flows therein and is discharged into the liquid in the liquid tank 6 from the opening 25 at the other end. Since the vessel 1 is disposed substantially horizontal with its one end portion inclined slightly upwardly, the liquid tank 6 is substantially filled with treating liquid (a), so that the head (h) between the highest liquid surface (b) in the liquid tank 6 and the liquid surface (c) in the liquid reservoir 4 becomes extremely small.

The apparatus is so arranged that after producing such a circulating current, the cloth (A) to be treated is introduced into the guide tube 12 passing around said driving reel 40 and through the opening 15 from the droppingg port 20 so as to flow through the liquid stream, and the cloth is caused to discharge into the liquid in the liquid tank 6 through the opening 25, whereby the cloth is made to stay and transfer in the liquid, then passes around the driving reel 40 again, thus the cloth can recirculate through the liquid.

In this manner, the treating liquid (a) is introduced into the liquid reservoir 4 through the pipe 27, the treating liquid (a) in the liquid reservoir 4 is caused to drop into the dropping port 20 from outside of the upper edge 18 over the inside thereof, and at the same time introducing a portion of the treating liquid (a) flowing in the pipe 27 into the auxiliary liquid stream producing chamber 14, and causing to eject the stream from the ejecting port 22 of the auxiliary liquid having a form of an annular slit, whereby it is possible to introduce the cloth (A) to be treated into the guide tube 12 with a sufficient energy possessed by the liquid stream even if the head (h) between the liquid surface (b) in the liquid tank 6 and the liquid surface (0) in the liquid reservoir 4 is small. Thus, the cloth (A), now in a form of a rope, is transferred in the guide tube 12 by the liquid stream, and is discharged into liquid together with a liquid stream discharged into the liquid in the liquid tank 6 from the opening 25 and is spread by the stream. In the liquid tank 6, the liquid moves slowly from the end 5 of the vessel 1 to the end 2, and since the cloth (A) is adapted to stay in the stream sufficiently, the cloth (A) is caused to swim and transfer in the liquid pushed by the liquid stream while being spread and presenting a zigzag motion in a vertical direction. By and by, the portion of cloth (A) transferred near the liquid reservoir 4 and drifting near the liquid surface (b) is drawn up by the driving reel 40. Since the driving reel 40 is arranged only slightly above both the liquid surfaces (b) and (c), a tension acting on the cloth (A) at the lifting is extremely small. Moreover, since the liquid tank 6 is filled with the treating liquid (a), the cloth (A) can be treated perfectly in the liquid, so that there is no possibility of producing unevenness in the treatment. Further, since the flow of liquid in the liquid tank 6 is regulated by the stream regulating plate 8, there is no fear of causing one-sided accumulation or entanglement of cloth (A) before and behind within the vessel. The movement of the liquid is well-regulated in the axial direction by means of the guide plates for liquid stream 1 l, 1 1 projectingly provided on the inner wall of the vessel 1 in the liquid tank6, so that a smooth transfer of the cloth (A) is maintained. Moreover, since the liquid tank 6 has semi-circular cross-sections, no rotation of liquid nor twisting of cloth will ever be produced. The feeding rate of the liquid to the auxiliary liquid stream producing chamber 14 is regulated by the opening or closing of the regulating valve 34, thereby the introducing energy acting on the cloth (A) near the opening 15 of the guide tube 12 is adjusted, and a portion of the treating liquid is taken out through the perforations 38, 38, formed in the guide tube and through the gap 39, and is caused to flow into the pipe 27 through the pipe 35. r

In the apparatus of the present invention, since a greater part of the vessel, which is disposed substantially horizontal with its one end slightly raised, is alloted to the liquid tank, the treating capacity of cloth is great, and the apparatus is so-called overflow type, thus it is possible to circulate the cloth quite smoothly even when the head is made small, and a perfect treatment in liquid being performed, there is no possibility of producing any unevenness.

What is claimed is:

1. Apparatus for treating cloth with a liquid comprising an inclined elongated vessel having a first end and a second end, said first end being disposed at an elevation higher than said second end, a partition wall located proximate said first end dividing said vessel into a tank section and a reservoir section, means defining an auxiliary liquid stream chamber within said reservoir 6 section, a guide tube extending externally along said vessel from said first end into flow communication with said second end, said guide tube extending at said first end upwardly through said auxiliary liquid stream chamber, said guide tube and said auxiliary liquid stream chamber each including overlapping terminal wall portions defining therebetween an annular passage enabling a first liquid flow therethrough from the interior of said auxiliary liquid stream chamber into said guide tube, with said terminal wall portion of said auxiliary liquid stream chamber extending over the terminal wall portion of said guide tube to define an upwardly directed flow opening through which a second liquid flow from said reservoir section may overflow into said guide tube, said annular passage being configured to introduce into said guide tube said first liquid flow in a downwardly directed direction at a point below the level at which said second liquid flow overflows into said guide tube, a driving reel provided above said liquid reservoir for introducing and circulating through said apparatus cloth to be treated therein, said reel 'being arranged to cause said cloth to pass downwardly into said guide tube through said upwardly directed flow opening past said annular passage, and means for circulating through said apparatus treatment liquid for treating said cloth.

2. Apparatus according to claim 1 wherein said elongated vessel comprises a generally tubular configuration including inner wall means defining said tank section, said apparatus further including guide plates located within said tank section and extending thereinto from said inner wall means.

3. Apparatus according to claim 1 wherein said overlapping terminal wall portions are arranged to define said annular passage with a generally tapering configuration which is wider toward said auxiliary liquid stream chamber and narrow toward said guide tube interior. 

1. Apparatus for treating cloth with a liquid comprising an inclined elongated vessel having a first end and a second end, said first end being disposed at an elevation higher than said second end, a partition wall located proximate said first end dividing said vessel into a tank section and a reservoir section, means defining an auxiliary liquid stream chamber within said reservoir section, a guide tube extending externally along said vessel from said first end into flow communication with said second end, said guide tube extending at said first end upwardly through said auxiliary liquid stream chamber, said guide tube and said auxiliary liquid stream chamber each including overlapping terminal wall portions defining therebetween an annular passage enabling a first liquid flow therethrough from the interior of said auxiliary liquid stream chamber into said guide tube, with said terminal wall portion of said auxiliary liquid stream chamber extending over the terminal wall portion of said guide tube to define an upwardly directed flow opening through which a second liquid flow from said reservoir section may overflow into said guide tube, said annular passage being configured to introduce into said guide tube said first liquid flow in a downwardly directed direction at a point below the level at which said second liquid flow overflows into said guide tube, a driving reel provided above said liquid reservoir for introducing and circulating through said apparatus cloth to be treated therein, said reel being arranged to cause said cloth to pass downwardly into said guide tube through said upwardly directed flow opening past said annular passage, and means for circulating through said apparatus treatment liquid for treating said cloth.
 2. Apparatus according to claim 1 wherein said elongated vessel comprises a generally tubular configuration including inner wall means defining said tank section, said apparatus further including guide plates located within said tank section and extending thereinto from said inner wall means.
 3. Apparatus according to claim 1 wherein said overlapping terminal wall portions are arranged to define said annular passage with a generally tapering configuration which is wider toward said auxiliary liquid stream chamber and narrow toward said guide tube interior. 